Ingredients:
6 medium potatoes
1 egg yolk
1 1/2 tsp salt
70g plain flour
Method:
Peel the potatoes then boil in a small volume of water for about 25 minutes, or until tender. Drain the potatoes thoroughly then set aside until they can be handled before ricing them through a hand-held masher or ricer. Se aside to cool completely.
Turn the potatoes onto a floured work surface then work in the egg yolk, salt and plain flour with your hands until thoroughly combined. Shape the resultant potato mixture into a long roll and cut into 10 slices.
Bring a pan of lightly-salted water to a boil and drop the potato cylinders into this. Boil gently for about 5 minutes until done and serve as an accompaniment. They can be served immediately, but, traditionally, they are fried in plenty of butter until browned all over before serving.